Created for Challenge # 099 based on Magnetic Mine #4, assuming it was meant to sacrifice. Since this version is a oneoff sorcery, it's easier to get the effect by just making it modal rather than having you make a separate choice.

I thought the Selesnya would be up for standardising what creatures are allowed to live, imposing their somewhat-creepy regularity. This kind of Wrath effect would promote some really interesting deckbuilding decisions - like Ashling's Prerogative but much more so. There's precedent for striated-Wraths with things like Austere Command, but it's more feasible to build a whole deck with even-CMC creatures than to build a whole deck with all-4-or-higher-CMC creatures.

I chose the name as fitting this effect, by analogy with Trostani's Judgment, but also being flexible enough to allow some onward chaining.

Ah, cool! This seems like something that should exist, better than our efforts on Square the Circle

white could this. it's just sad that selesnya is all about tokens, and all tokens have the same parity CMC.

Mmm. So while either mode feels somewhat Selesnya, there's one use implied by the mechanics of tokens - destroying all odd-CMC and leaving the even ones alone - but another one supported by the text. Is that a problem?

FWIW, I think that's just about perfect. It has a particularly good use for an always-even, but allowing you can use it as a situational card, or in an "odd-mana-cost-only" deck if you prefer. None of the usual downsides to a weighted choice seem to apply: either mode is a decent wrath with a niche build-around, so they don't clash in limited; and I think "even or odd, your choice" reads more naturally than "even only" (people might even ask, why can't I choose odd -- lots of even/odd more/less cards give you the choice).

And white is about theoretical fairness -- it's ok if sometimes actual fairness is ground up between the wheels of justice :)